Optically-secured adaptive software-defined optical sensor network architecture

Patent metadata

Field	Value
Publication number	US-10295751-B2
Application number	US-201815907728-A
Country	US
Kind code	B2
Filing date	Feb 28, 2018
Priority date	Mar 3, 2017
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

A method and network are provided for a reconfigurable optical sensor network. The method includes configuring, by a controller, the reconfigurable optical sensor network, including one or more reconfigurable optical space switches, for a type of sensor data. The method also includes generating sensor data in the type of sensor data with one or more of a plurality of bidirectional sensors. The method additionally includes sending the sensor data to one or more optical star couplers. The method further includes forwarding the sensor data from one of the one or more optical star couplers to the one of one or more reconfigurable optical space switches.

First claim

What is claimed is:

1. A reconfigurable optical sensor network, comprising:
a controller that configures a path of the network and a plurality of bidirectional sensors to gather a type of sensor data;
one or more optical star couplers in the path of the network;
one or more reconfigurable optical space switches configured by the controller to form the path of the network; and
one or more fiber optic communication lines in the path of the network;
wherein the one or more reconfigurable optical space switches employ active vertical couplers; wherein the active vertical couplers are formed at each cross-point of switching cell of the switch by placing an active waveguide coupler stacked on top of both an input and output passive waveguides of the switching cell.

2. The reconfigurable optical sensor network as recited in claim 1 , wherein one or more of the plurality of bidirectional sensors connect directly to one of the one or more optical star couplers.

3. The reconfigurable optical sensor network as recited in claim 1 , wherein one or more of the plurality of bidirectional sensors connect with optical tap couplers to the one or more fiber optic communication lines.

4. The reconfigurable optical sensor network as recited in claim 1 , wherein one of the plurality of bidirectional sensors includes an optical transmitter, an optical direct detection receiver, and a sensor device.

5. The reconfigurable optical sensor network as recited in claim 4 , wherein the optical transmitter, the optical direct detection receiver, and the sensor device are included in a single chip.

6. The reconfigurable optical sensor network as recited in claim 1 , wherein one of the plurality of bidirectional sensors includes a vertical-cavity surface-emitting laser (VCSEL) and a sensor device.

7. The reconfigurable optical sensor network as recited in claim 6 , wherein a received signal is extracted through a bias current of the VCSEL.

8. The reconfigurable optical sensor network as recited in claim 6 , wherein the VCSEL and the sensor device are included in a single chip.

9. The reconfigurable optical sensor network as recited in claim 1 , wherein the type of senor data is selected from the group consisting of current, voltage, light, seismic, chemical, smoke, carbon monoxide, air pollution, gas, flow, radiation, pressure, and temperature.

10. A reconfigurable optical sensor network, comprising:
a controller that configures a path of the network and a plurality of bidirectional sensors to gather a type of sensor data;
one or more optical star couplers in the path of the network;
one or more reconfigurable optical space switches configured by the controller to form the path of the network; and
one or more fiber optic communication lines in the path of the network;
wherein one of the plurality of bidirectional sensors includes a vertical-cavity surface-emitting laser (VCSEL) and a sensor device

wherein the VCSEL both receives and transmits optical signals dependent on a bias voltage polarity of the VCSEL; wherein the one or more reconfigurable optical space switches employ active vertical couplers, and wherein the active vertical couplers are formed at each cross-point of switching cell of the switch by placing an active waveguide coupler stacked on top of both an input and output passive waveguides of the switching cell.

11. A method for a reconfigurable optical sensor network, comprising:
configuring, by a controller, the reconfigurable optical sensor network, including one or more reconfigurable optical space switches, for a type of sensor data;
generating sensor data in the type of sensor data with one or more of a plurality of bidirectional sensors;
sending the sensor data to one or more optical star couplers; and
forwarding the sensor data from one of the one or more optical star couplers to the one of one or more reconfigurable optical space switches;
wherein one of the plurality of bidirectional sensors includes a vertical-cavity surface-emitting laser (VCSEL) and a sensor device for detecting the type of sensor data;
wherein a polarity of the VCSEL is adjusted to enable the one of the plurality of bidirectional sensors to send the sensor data; wherein the one or more reconfigurable optical space switches employ active vertical couplers, and wherein the active vertical couplers are formed at each cross-point of switching cell of the switch by placing an active waveguide coupler stacked on top of both an input and output passive waveguides of the switching cell.

12. The method in claim 11 , wherein one or more of the plurality of bidirectional sensors sends the sensor data directly to one of the one or more optical star couplers.

13. The method as recited in claim 11 , wherein one or more of the plurality of bidirectional sensors sends the sensor data through an optical tap coupler to one or more fiber optic communication lines.

14. The method as recited in claim 11 , wherein a bias current of the VCSEL is employed to extract a received signal.

15. The method as recited in claim 11 , wherein the VCSEL and the sensor device are included in a single chip.

16. The method as recited in claim 11 , wherein a control voltage is applied to the one or more reconfigurable optical space switches to latch an active vertical coupler.

17. The method as recited in claim 11 , wherein the type of senor data is selected from the group consisting of current, voltage, light, seismic, chemical, smoke, carbon monoxide, air pollution, gas, flow, radiation, pressure, and temperature.

Assignees

• Nec Lab America Inc
• Nec Corp

Inventors

• Djordjevic Ivan B
• Zhang Shaoliang
• Wang Ting

Classifications

• G02B6/356

  in an optical cross-connect device, e.g. routing and switching aspects of interconnecting different paths propagating different wavelengths to (re)configure the various input and output links (switching polarized beams G02B6/3594; power equalizers G02B6/356 and G02B6/3594; path selecting means H04Q11/0001) · CPC title

• G02B6/3546

  NxM switch, i.e. a regular array of switches elements of matrix type constellation · CPC title

• G02B6/3584

  constructional details of an associated actuator having a MEMS construction, i.e. constructed using semiconductor technology such as etching (MEMS per se B81B, B81C) · CPC title

• H04L63/0428

  wherein the data content is protected, e.g. by encrypting or encapsulating the payload · CPC title

• H04Q2011/0064

  Arbitration, scheduling or medium access control aspects · CPC title